Can one teach SOAPUI to NOT update the project file each time one opens it?

Can it be possible to be more specific about "updates some timestamp"?
Where do you see it?
Is it a custom property which is there in the project?

Here is a thread if project saves some properties and this is causing modifications?
https://community.smartbear.com/t5/SoapUI-Pro/Solution-Script-to-Cleanup-of-Custom-property-values-in-the/m-p/198108